1011001₂=1×2⁰+1×2³+1×2⁴+1×2⁶=1+8+16+64=89₁₀
11110₂=1×2¹+1×2²+1×2³+1×2⁴=2+4+8+16=30₁₀
11011011₂=1×2⁰+1×2¹+1×2³+1×2⁴+1×2⁶+1×2⁷=1+2+8+16+64+128=219₁⁰
1011001₂=1×2⁰+1×2³+1×2⁴+1×2⁶=1+8+16+64=89₁₀
11110₂=1×2¹+1×2²+1×2³+1×2⁴=2+4+8+16=30₁₀
11011011₂=1×2⁰+1×2¹+1×2³+1×2⁴+1×2⁶+1×2⁷=1+2+8+16+64+128=219₁⁰